[akka-user] Re: 99% Self-Time is spent in ForkJoinPool functions when using Akka-Streams with default settings

2014-12-11 Thread Tim Harper
Machine has a single quad-core, hypther-threaded processor. This is a 
screen-grab of the thread activity:

http://screencast.com/t/ofQCund9JCq

I think it is switching threads far too frequently. I'm experimenting with 
ways to tune these settings and get better performance.

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Re: [akka-user] Re: 99% Self-Time is spent in ForkJoinPool functions when using Akka-Streams with default settings

2014-12-11 Thread √iktor Ҡlang
In my experience if most of your time is in scan, it means that you are
running too high parallelism on your FJP—it is workers looking for work.

On Thu, Dec 11, 2014 at 10:01 PM, Tim Harper timchar...@gmail.com wrote:

 Machine has a single quad-core, hypther-threaded processor. This is a
 screen-grab of the thread activity:

 http://screencast.com/t/ofQCund9JCq

 I think it is switching threads far too frequently. I'm experimenting with
 ways to tune these settings and get better performance.

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  Read the docs: http://akka.io/docs/
  Check the FAQ:
 http://doc.akka.io/docs/akka/current/additional/faq.html
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